Owen Crump
Director
Henry F. Greenberg
Writer
Owen Crump
Producer
Ellis W. Carter
Director of Photography
Fred MacDowell
Editor
Donald A. Peters
Art Direction
William L. Kuehl
Set Decoration
Frank Baxter
Himself (as Dr. Frank C. Baxter)
Hadley Cantrell
Himself - Princeton University Psychologist (as Professor Hadley Cantrell)
Edwin Max
Bill
Wilder Penfield
Himself - Director: Montreal Neurological Institute (as Dr. Wilder Penfield)
Peter Brown
Aristotle's student (uncredited)
Karl Swenson
Hal - the Cameraman (uncredited)
